Mackie HR824mk2 8.75 inch Active Studio Monitor with Passive Radiator
The HR824mk2 is the larger of the two HRmk2 models, and the extra size shows up where it matters for mixing: low frequency extension. A passive radiator takes the response down to 35 Hz, so you hear what is happening under the kick drum instead of guessing at it.
- 8.75 inch high-precision, low-distortion LF transducer paired with a 1 inch ferro-fluid cooled titanium dome tweeter.
- Twin FR Series amplifiers: 150W for low frequencies and 100W for high frequencies, matched to the drivers inside the cabinet.
- Passive radiator design gives tight, articulate bass extension down to 35 Hz, which is what you feel as well as hear.
- Ultra-linear frequency response aimed at mix translation, so decisions made here hold up on other systems.
- Optimized waveguide widens the sweet zone, useful when more than one person is at the desk.
- Full internal damping removes midrange artifacts caused by the cabinet itself.
- Room controls: acoustic space, LF roll-off and HF adjustment for placement against walls or in corners.
- Connections: balanced XLR, balanced TRS and unbalanced RCA inputs.
- THX pm3 certified for surround sound applications, and it shares its design with the smaller HR624mk2 so the two work together in a surround array.
The HR Series has been a reference in critical mixing and mastering rooms since the 1990s, and the HRmk2 is the generation that carries it forward. The HR824mk2 is the larger of the two models, which is the one you choose when the room can take it and the work involves low end you need to trust.
Where the extra size goes
An 8.75 inch high-precision, low-distortion LF transducer does the heavy lifting, but the real difference is the passive radiator. Rather than a simple port, the radiator extends the bass down to 35 Hz with a tight, articulate character instead of the loose bloom that ports can introduce. On kick drums, sub bass lines and low synth work, that is the difference between mixing what you hear and mixing what you hope is there. A 1 inch titanium dome tweeter, ferro-fluid cooled, handles the top.
Amplification and cabinet
Each driver has its own FR Series amplifier, 150W for the woofer and 100W for the tweeter, so the crossover happens at line level and each amp only ever sees the band it was designed for. Full internal damping eliminates midrange artifacts that would otherwise come from the box rather than the music, and an optimized waveguide broadens the sweet zone so the stereo image does not collapse the moment you lean sideways. Mackie's aim across the design is ultra-linear frequency response for accurate mix translation.
Fitting it to your room and your rig
Acoustic space, LF roll-off and HF controls let you compensate for placement, whether the monitors are free-standing, close to a wall or wedged into a corner. Inputs cover balanced XLR, balanced TRS and unbalanced RCA, so an interface, a monitor controller or a consumer source all connect directly. The HR824mk2 is THX pm3 approved, which also makes it a sensible choice for a home theatre or gaming setup where the same accuracy is welcome.
Building a surround system
Because the HR624mk2 and the HR824mk2 share the same design, they voice consistently and work well together. That makes a mixed array practical: HR824mk2 cabinets across the front where extension counts, HR624mk2 for surrounds, with the tonal character staying the same all the way around the room.